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Finding the Fourth Proportional to 635,836.66, 877,464.55 and 345,453.98

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Solution

The fourth proportional to 635,836.66, 877,464.55 and 345,453.98 is: 476,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,836.66 : 877,464.55 = 345,453.98 : x
  2. Step 2: Convert to fraction form
    635,836.66/877,464.55 = 345,453.98/x
  3. Step 3: Cross multiply
    635,836.66x = 877,464.55 × 345,453.98
  4. Step 4: Simplify right side
    635,836.66x = 303,123,621,106.41
  5. Step 5: Solve for x
    x = 303,123,621,106.41/635,836.66
  6. Step 6: Final answer
    x = 476,731.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.